In the United States, you may have noticed a lot of people in line of the iPhone are Chinese. The reason? The iPhone 6 is not yet sold in China, which is the world's largest smartphone market. That means big money for Chinese buyers who come to the U.S. and play the line well.

PayPal co-founder Peter Thiel is worth billions of dollars thanks to investments in companies like Facebook. As a graduate of Stanford law, you'd think he'd encourage others to follow in his footsteps and go to college.